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ST. PETERSBURG, FL - NOVEMBER 6: Lines of voters wait to cast their ballots as the polls open on November 6, 2012 in St. Petersburg, Florida. The swing state of Florida is recognised to be a hotly contested battleground that offers 29 electoral votes, as recent polls predict that the race between U.S. President Barack Obama and Republican presidential candidate Mitt Romney remains tight. (Photo by Edward Linsmier/Getty Images)